BaYxFe12-хO19 (0.1 ≤ x ≤ 1.2) hexaferrites were studied using Mössbauer spectroscopy, magnetometry, and X-ray diffraction. A low isomorphic capacity of hexaferrite is shown, which at x = 0.6 leads to phase separation with the formation of BaFe2O4 and Y3Fe5O12 impurity phases. The data of Mössbauer spectroscopy showed that the Y3 + ions occupied the 12k position with the formation of the nonequivalent position 12k ′ due to the breaking of two magnetic bonds Fe (12k) - O - Fe (12k) in the triad of octahedra 12k with their replacement by Fe (12k ) - O - Y (12k). It is shown that BaYxFe12-хO19 hexaferrites are less magnetically hard than BaFe12-хAlxO19.
Особенности катионного распределения и магнитных свойств гексаферритов BaFe-=SUB=-12-x-=/SUB=-Y-=SUB=-x-=/SUB=-О-=SUB=-19-=/SUB=-